Ring binder construction



June 22, 1943. F. s. SCHADE 2,322,596

RING BINDER CONSTRUCTION Filed Dec. 3*, 1942 '""fF-'I I I e- I, I [v l I s I I I l l I l I l `I /1 g l, 24% f I l I l I I /J`IL`I'T' i .9 l II i I I I I I I I f v |I l 4| n I| I BY i y ATTO Rg EYS Patented June 22, 1943 RING BINDER CONSTRUCTION Frank Stanley Schade, Holyoke, Mass., assignor to National Blank Book Company, Holyoke, Mass., a corporation of Massachusetts Application December 3, 1942, Serial No. 467,673

l Claim.

This invention relates to an improved structure for loose-leaf binders, particularly ring binders.

It is an improvement of the type shown in copending application Serial No. 420,179, led November 24, 1941, by John Schade.

The improvement consists in simplifying the parts of the structure, in coordinating them so as to lower the cost of manufacture, and in some respects to make a better structure at a lower cost.

As the invention involves detail, I will disclose the detail of my preferred form and discuss its meaning and advantage.

In the drawing- Fig. 1 is a section with parts broken away;

Fig. 2 is an other View of parts shown in Fig. 1, with the rings open;

Fig. 3 is a perspective View of ring holding parts;

Fig. 4 is a plan view of the ring binder; and

Fig. 5 is a detail view.

The new construction is adapted for making relatively large ring binders, for example binders with rings of more than an inch in diameter, as contrasted with those of an inch or less. One with rings of two inch diameter will illustrate what I mean when I refer to heavy binders. A full binder of that size is quite heavy. And, ordinarily, the covers are quite large. for holding a set of catalogs or other heavy sheet packs.

According to my plan of construction I make a cover panel with a cloth extension as shown in Fig. 5. The stii panel I may be of cardboard. It is covered by cloth sheet 2` which may be pasted down on one side with its edges 3 turned over and pasted down on the margin of panel I. At the inner panel edge the cloth sheet 2 is extended, in the form of a wide, flexible cloth flap 4. The assembly of Fig. 5 can be made by automatic case making machines. labor cost. Two of such structures are made. One complements the other.

In Fig. 1 I show how the parts, two duplicate structures, are brought together. A suitable margin 4' is turned from each flap 4 in an arrangement like two abutting anges. Then these two anges are joined by a strong row of stitches 5.

'I'he parts 6 and 'I of Fig. 3, carrying the rings 8, are each one nested in one of the angles made from the strips 4 and 4', as seen in Figs. 1 and 2. These parts 6 and 1 are conveniently made of Wood and may be pasted onto the cloth strips. The wood strips or sticks 6 and 'I carry rings 8 fast to the strips. The binder is provided with flexible finishing strips 9 and I0, the latter overlapping its adjacent wood strip. The cover hinges are a and b.

It is very low in material and They are used When assembledin the way shown and described, the back portion of the binder is made up of cloth strips 4 and 4'. One pair of such strips is sewed together with the other pair along a line of stitches 5. This line of stitches 5 makes a central hinge line for the whole book. In the position of Fig. 2 the rings are open. In the position of Fig. 1 they are closed. When closed, pivoted nger latch I5 may be moved to insert parallel anges I I and I2 in suitable recesses Il and I2 of strips 6 and I to hold the strips and the rings together. The rings open and close when wood strips 6 and 'I turn on hinge line 5.

The whole structure is much like that described in the before-mentioned copending case. The chief difference is in the construction of the back portion. Mine is a well working and inexpensive, back construction. It might seem not so strong as in the previous construction. That is, the row of stitches apparently makes a critical line. But the fact is that in the closed position the latch I5 will hold the strips or wood sticks 6 and I together, and the rings closed, and take practically all strains.

What I claim is:

A ring binder construction comprising in combination, two cover panels each including a stiffening board, cardboard for example, a cloth sheet fastened on one side of said board and with margins turned over on three sides of the board and an integral extension from the fourth side forming a wide integral foundation strip on which to build up a back portion, the said cloth extensions of such cover panels having their outer margins turned up like anges and sewed together on a hinge line at the base of such turned-up portions, a pair of sticks formed in complementary fashion to come together along two flat sides and together formed in cross-section in a general oval form, complementary ring portions fast to said sticks and a latch movable to hold the sides of said sticks together in a positive manner, said latch being carried wholly by said sticks, one of said sticks being nested and fastened in the angle of the cloth extension from one cover panel and the other stick being correspondingly nested and fastened in the angle of the other cloth extension so that said sticks are hinged from their bottom adjacent edges along the sewed line fastening the cloth extensions together, said covers having finishing strips on their inside faces, said cloth sheets one from each cover forming with the sticks the back portion of the binder and hinged on its center line in the way and for the purpose described.

FRANK STANLEY SCHADE. 

